CN106881559A - A kind of supersonic making method for improving locomotive wheel wearability and application - Google Patents
A kind of supersonic making method for improving locomotive wheel wearability and application Download PDFInfo
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- CN106881559A CN106881559A CN201510971350.7A CN201510971350A CN106881559A CN 106881559 A CN106881559 A CN 106881559A CN 201510971350 A CN201510971350 A CN 201510971350A CN 106881559 A CN106881559 A CN 106881559A
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- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P9/00—Treating or finishing surfaces mechanically, with or without calibrating, primarily to resist wear or impact, e.g. smoothing or roughening turbine blades or bearings; Features of such surfaces not otherwise provided for, their treatment being unspecified
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Abstract
A kind of supersonic making method for improving locomotive wheel wearability, including：Ultrasonic machining is carried out to the wheel rim rotated along main shaft and the surface of tread using Ultrasonic machining tool heads.Supersonic making method of the present invention can solve the problem that the current phenomenon that rolling stock wheel and rail fretting wear is serious, the cost of repairs is high.This method can not only be processed to the locomotive wheel for just having dispatched from the factory, Repair gene can also be carried out to the locomotive wheel after abrasion, wherein, after Surface Machining being carried out using supersonic making method to locomotive wheel wheel rim and tread portion, the tension of the metal surface of wheel rim and tread can be made to become compression, while wheel rim and tread portion surface roughness value can be substantially reduced, in the preset preferable compression in its surface, the hardness on its surface is improved, crystal grain is refined, wearability is greatly improved, improve wheel-rail contact relationship, reduce wheel to rolling contact fatigue damage.Reduce the wear rate of wheel, the Xuan for extending wheel repaiies cycle and service life.
Description
Technical field
The present invention relates to a kind of supersonic making method for improving locomotive wheel wearability and application, belong to Ultrasonic metal Surface Machining
Technical field.
Background technology
It is well known that railway transportation is adhesive tractive effort and adhesion braking power based on wheel-rail interaction generation being transported with realizing train
Capable, the energy and the energy consumed in railway transportation by fretting wear between wheel track are a lot, and cost is also very big.With railway transportation
To high speed, heavy duty development, because the accident risk caused by fretting wear is also increasing.The various damages that running surface of wheeltrack is formed, no
But the service life of wheel track is shortened, wheel pair and rail failure are also resulted in after heavy wear, jeopardize traffic safety.
Wheel is the important running part of rail vehicles.In train operation, wheel rolling can send out wheel tread and wheel rim
Raw abrasion, and wheel is slided on rail and will also result in tread damage.Counted according to failure analysis, rolling stock's wheel damage
Main Types have wheeling edge wearing, wheel rim fatigue crack, fire damage, wheel tread peel off and burst apart.
Wheel rim is the important component on wheel, enables wheel reliably by curve and track switch, to the security of train driving
And stability plays an important roll, the abnormal wear of wheel rim often makes normal wheel rail relation change, and reduces vehicle power
Performance and by bus comfort level.
Train when by curve and track switch, rail to take turns to active force a part at the tread of wheel, another part effect
In wheel to rim part, now, the abrasion of rim part is most fast.The Xuan of train wheel repaiies foundation, is the thickness by detecting wheel rim
To judge, when the thickness of wheel rim is reduced to a determination value, it is necessary to repaiied to carrying out Xuan to taking turns, can otherwise influence the fortune of train
Row safety.
It is numerical control turning that train wheel Xuan repaiies the existing processing mode for using of processing, i.e., when wheel is reduced to certain value to flange thickness,
By numerical control turning, wheel diameter is reduced, the flange thickness after turning is returned to the numerical value of requirement.By after turning, no
Other surface treatments are carried out again.It is general in Ra values 6.3 or so through the rim part surface roughness value after turning.After turning
Wheel rim surface is in tensile stress state, and the presence of tension causes that wheel is very fast to initial wear so that wheel to service life
Substantially reduce.
The content of the invention
In view of the shortcomings of the prior art, the present invention provides a kind of supersonic making method for improving locomotive wheel wearability.
The present invention also provides the application of above-mentioned processing method.
Technical scheme is as follows：
A kind of supersonic making method for improving locomotive wheel wearability, including：Wheel rim and tread to locomotive wheel carry out ultrasonic adding
Work, i.e., carry out Ultrasonic machining using Ultrasonic machining tool heads to the wheel rim rotated along main shaft and the surface of tread.
According to currently preferred, the locomotive wheel is the locomotive wheel after the new locomotive wheel for dispatching from the factory or abrasion.
According to currently preferred, when the locomotive wheel after the locomotive wheel is abrasion, to through the locomotive after semifinishing
The wheel rim and tread of wheel carry out Ultrasonic machining.
According to currently preferred, wheel rim and tread to locomotive wheel carry out turning semifinishing, even if the wheel rim and tread
Surface roughness be 3.2-10 μm.
According to currently preferred, the parameter of the Ultrasonic machining is：The rotating speed of main shaft is 5-45r/min；The amount of feeding is
0.03-0.2mm/r；Ultrasonic machining tool heads are 300-3000N to the pressure of work surface.
According to currently preferred, the parameter of the Ultrasonic machining is：The rotating speed of main shaft is 19r/min；The amount of feeding is 0.1mm/r；
Ultrasonic machining tool heads are 1200N to the pressure of work surface.
According to currently preferred, ultrasound carried out to the wheel rim rotated along main shaft and the surface of tread using Ultrasonic machining tool heads and is added
Work, the round number of times of the Ultrasonic machining is 1-3 times.
According to currently preferred, ultrasound carried out to the wheel rim rotated along main shaft and the surface of tread using Ultrasonic machining tool heads and is added
Work, the amplitude of the Ultrasonic machining is 5-25 μm.
It is a kind of using if above-mentioned supersonic making method is improving the application of locomotive wheel wearability：
Region for locomotive wheel correspondence in the presence of abrasion carries out Ultrasonic machining, and the parameter of the Ultrasonic machining is：The rotating speed of main shaft
It is 5-45r/min；The amount of feeding is 0.03-0.2mm/r；Ultrasonic machining tool heads are 300-3000N to the pressure of work surface.
According to currently preferred, before the region of the abrasion carries out Ultrasonic machining, turning semifinishing is carried out to it, i.e.,
Its surface roughness is set to be 3.2-10 μm.
According to currently preferred, the parameter of the Ultrasonic machining is：The rotating speed of main shaft is 19r/min；The amount of feeding is 0.1mm/r；
Ultrasonic machining tool heads are 1200N to the pressure of work surface.
Advantage of the invention is that：
Supersonic making method of the present invention can solve the problem that current rolling stock wheel and rail fretting wear is serious, the cost of repairs is high and show
As.Supersonic making method of the present invention can not only be processed to the locomotive wheel for just having dispatched from the factory, moreover it is possible to the machine after abrasion
Car wheel carries out Repair gene, wherein, after carrying out Surface Machining to locomotive wheel wheel rim and tread portion using supersonic making method,
The tension of the metal surface of wheel rim and tread can be made to become compression, wheel rim and tread portion surface roughness value can be substantially reduced
Meanwhile, in the preset preferable compression in its surface, the hardness on its surface is improved, and crystal grain is refined, and wearability is big
Width is improved, and improves wheel-rail contact relationship, reduce wheel to rolling contact fatigue damage.Reduce the wear rate of wheel, extension
The Xuan of wheel repaiies cycle and service life.
Brief description of the drawings
Fig. 1 is machining sketch chart of the utilization supersonic making method of the present invention to locomotive wheel；
Fig. 2 is the area schematic that Ultrasonic machining is treated on locomotive wheel, and wherein dotted portion is region to be processed；
Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 3 d, Fig. 3 e, for the embodiment of the present invention 4 in, by change Ultrasonic machining pressure to wheel
After edge and tread Ultrasonic machining, the wheel rim and tread surface metallograph；
In fig. 1 and 2,1, Ultrasonic machining tool heads；2nd, wheel rim；3rd, tread；4th, dotted line refers to utilize Ultrasonic machining
Region.
Specific embodiment
The present invention is described in detail with reference to embodiment and Figure of description, but not limited to this.
As shown in Figure 1-2.
Embodiment 1,
A kind of supersonic making method for improving locomotive wheel wearability, including：Wheel rim 2 and tread to locomotive wheel 3 surpass
Sound is processed, i.e., carry out Ultrasonic machining using the surface of 1 pair of wheel rim 2 rotated along main shaft of Ultrasonic machining tool heads and tread 3.Institute
It is the new locomotive wheel for dispatching from the factory to state locomotive wheel.
Embodiment 2,
A kind of supersonic making method for improving locomotive wheel wearability as described in Example 1, its difference is that the ultrasound adds
The parameter of work is：The rotating speed of main shaft is 5-45r/min；The amount of feeding is 0.03-0.2mm/r；Ultrasonic machining tool heads are to be processed
The pressure on surface is 300-3000N.
Embodiment 3,
A kind of supersonic making method for improving locomotive wheel wearability as described in Example 1, its difference is, the locomotive
Wheel is the locomotive wheel after abrasion.
When the locomotive wheel after the locomotive wheel is abrasion, to wheel rim 2 and tread 3 through the locomotive wheel after semifinishing
Carry out Ultrasonic machining.
Wheel rim 2 and tread 3 to locomotive wheel carry out turning semifinishing, even if the rough surface of the wheel rim 2 and tread 3
Spend is 3.2-10 μm.
Embodiment 4,
A kind of supersonic making method of the raising locomotive wheel wearability as described in embodiment 2,3, its difference is, the ultrasound
The parameter of processing is：The rotating speed of main shaft is 19r/min；The amount of feeding is 0.1mm/r；Ultrasonic machining tool heads 1 are to work surface
Pressure be 1200N.
Such as the present embodiment, change Ultrasonic machining tool heads and the pressure of work surface is respectively：100N、300N、1200N、3000N、
The residual stress average of 3500N, the processed rear wheel rim and tread is as follows：
Wherein Fig. 3 a are Ultrasonic machining tool heads to when the pressure of work surface is 100N, the wheel rim 2 and tread 3 for being processed
The metallograph on surface；
Wherein Fig. 3 b are Ultrasonic machining tool heads to when the pressure of work surface is 300N, the wheel rim and tread surface for being processed
Metallograph；
Wherein Fig. 3 c are Ultrasonic machining tool heads to when the pressure of work surface is 1200N, the wheel rim and tread table for being processed
The metallograph in face；
Wherein Fig. 3 d are Ultrasonic machining tool heads to when the pressure of work surface is 3000N, the wheel rim and tread table for being processed
The metallograph in face；
Wherein Fig. 3 e are Ultrasonic machining tool heads to when the pressure of work surface is 3500N, the wheel rim and tread table for being processed
The metallograph in face.
Embodiment 5,
A kind of supersonic making method of the raising locomotive wheel wearability as described in embodiment 2,3, its difference is, using ultrasound
The surface of first 1 pair wheel rim 2 rotated along main shaft of machining tool and tread 3 carries out Ultrasonic machining, and coming and going for the Ultrasonic machining is secondary
Number is 1-3 times.
Embodiment 6,
A kind of supersonic making method of the raising locomotive wheel wearability as described in embodiment 2,3, its difference is, using ultrasound
The surface of first 1 pair wheel rim 2 rotated along main shaft of machining tool and tread 3 carries out Ultrasonic machining, and the amplitude of the Ultrasonic machining is
5-25μm。
Embodiment 7,
It is a kind of using the supersonic making method as described in embodiment 1-6 improving the application of locomotive wheel wearability：
Region for locomotive wheel correspondence in the presence of abrasion carries out Ultrasonic machining, and the parameter of the Ultrasonic machining is：The rotating speed of main shaft
It is 5-45r/min；The amount of feeding is 0.03-0.2mm/r；Ultrasonic machining tool heads are 300-3000N to the pressure of work surface.
Embodiment 8,
A kind of application using raising locomotive wheel wearability as described in Example 7, its difference is, in the region of the abrasion
Before carrying out Ultrasonic machining, turning semifinishing is carried out to it, even if its surface roughness is 3.2-10 μm.
Embodiment 9,
It is a kind of using the application for improving locomotive wheel wearability as described in Example 7, its difference is, the ginseng of the Ultrasonic machining
Number is：The rotating speed of main shaft is 19r/min；The amount of feeding is 0.1mm/r；Ultrasonic machining tool heads 1 are to the pressure of work surface
1200N。
Experimental Comparison example：
It is as follows that locomotive wheel after to being processed in embodiment 3 and embodiment 4 carries out Experimental Comparison：
During the surface of locomotive wheel carries out Ultrasonic machining, influence processing effect factor have the speed of mainshaft, the amount of feeding and
Above three factor as experimental factor is denoted as A (the correspondence speed of mainshaft), B (the correspondence amount of feeding) by pressure, this experiment respectively
With C (corresponding pressure).Determine that each factor takes three levels respectively in this Experimental Comparison example, i.e.,：
A (the correspondence speed of mainshaft) corresponding three standards include：A1=5r/min；A2=19r/min；A3=45r/min；
B (the correspondence amount of feeding) corresponding three standards include：B1=0.03mm/r；B2=0.1mm/r；B3=0.2mm/r；
Corresponding three standards of C (corresponding pressure) include：C1=300N；C2=1200N；C3=3000N.
Table 1：Ultrasonic machining is applied to locomotive wheel surface abrasion resistance test parameters
From the test data of table 1, when A (the correspondence speed of mainshaft) corresponding A 2=19r/min, B (the correspondence amount of feeding) is right
When answering B2=0.1mm/r, C (corresponding pressure) correspondence C2=1200N, obtain optimal surface roughness, hardness, hardness and improve equal
It is highest.
Above-mentioned data are analyzed in conjunction with orthogonal test below, to verify whether being also when A (the correspondence speed of mainshaft) correspondence
During A2=19r/min, B (the correspondence amount of feeding) correspondence B2=0.1mm/r, C (corresponding pressure) correspondence C2=1200N, obtain most
It is highest that good surface roughness, hardness, hardness are improved.
Orthogonal experiment data is analyzed：
A1=5r/min；A2=19r/min；A3=45r/min；
B (the correspondence amount of feeding) corresponding three standards include：B1=0.03mm/r；B2=0.1mm/r；B3=0.2mm/r；
Corresponding three standards of C (corresponding pressure) include：C1=300N；C2=1200N；C3=3000N.
Table 2：Three experimental factor water-glasses
According to orthogonal experiment data method, L can be selected9(34) or L27(313)；Yin Ben experiments only investigate three factors to locomotive
The influence of wheel surface processing effect, the reciprocation between factor is not investigated, therefore select L9(34) orthogonal arrage.
In L9(34) level value of each factor is inserted in orthogonal arrage, just form orthogonal test scheme (table 3)：
Table 3：Orthogonal test scheme
It is 19r/min that the speed of mainshaft is intuitively can be seen that from table 3, and the amount of feeding is 0.1mm/r, rail when pressure is 1200N
Total wear rate with wheel is minimum, and its horizontal combination is A2B2C2。
Result to testing is analyzed
1. it is analyzed from total wear rate of skimming wear, table 4
For the factor A speeds of mainshaft, it can be seen that k1＞ k3＞ k2.Because result index is wear rate, expect to obtain
The minimum value of wear rate, it is possible to judge A2It is the excellent level of A factors.
The excellent level respectively B of factor B and factor C can similarly be obtained2And C2.Therefore it is excellent to be combined as A2B2C2.In addition from
The size of extreme difference R can be seen that in three empirical factors, and influence of the factor B amount of feeding to skimming wear rate is maximum.
2. it is analyzed from total wear rate of Rolling wear, table 5
For the factor A speeds of mainshaft, it can be seen that k1＞ k3＞ k2.Because result index is wear rate, expect to obtain
The minimum value of wear rate, it is possible to judge A2It is the excellent level of A factors.
The excellent level respectively B of factor B and factor C can similarly be obtained2And C2.Therefore it is excellent to be combined as A2B2C2.In addition from
The size of extreme difference R can be seen that in three empirical factors, and influence of the factor B amount of feeding to Rolling wear rate is maximum.
From the analysis result and the result of Rolling wear rate of skimming wear rate, excellent combination is A2B2C2, therefore choose
A2B2C2The workpiece of corresponding parameter processing carries out friction-wear test.Result of the test shows, after surface treated, is rolling
The wearability of wheel sample improves more than 50% in abrasion and sliding wear testing, meanwhile, the car after surface treated
Take turns and the wear rate of rail sample is significantly reduced.
Claims (10)
1. it is a kind of improve locomotive wheel wearability supersonic making method, it is characterised in that the method includes：
Carry out Ultrasonic machining to the wheel rim and tread of locomotive wheel, i.e., using Ultrasonic machining tool heads to being rotated along main shaft
The surface of wheel rim and tread carries out Ultrasonic machining.
2. a kind of supersonic making method for improving locomotive wheel wearability according to claim 1, it is special
Levy and be, the locomotive wheel is the locomotive wheel after the new locomotive wheel for dispatching from the factory or abrasion.
3. a kind of supersonic making method for improving locomotive wheel wearability according to claim 2, it is special
Levy and be, when the locomotive wheel after the locomotive wheel is abrasion, to through the locomotive wheel after semifinishing
Wheel rim and tread carry out Ultrasonic machining.
4. a kind of supersonic making method for improving locomotive wheel wearability according to claim 3, it is special
Levy and be, the wheel rim and tread to locomotive wheel carry out turning semifinishing, even if the table of the wheel rim and tread
Surface roughness is 3.2-10 μm.
5. a kind of supersonic making method for improving locomotive wheel wearability according to claim 1, it is special
Levy and be, the parameter of the Ultrasonic machining is：The rotating speed of main shaft is 5-45r/min；The amount of feeding is
0.03-0.2mm/r；Ultrasonic machining tool heads are 300-3000N to the pressure of work surface.
6. a kind of supersonic making method for improving locomotive wheel wearability according to claim 5, it is special
Levy and be, the parameter of the Ultrasonic machining is：The rotating speed of main shaft is 19r/min；The amount of feeding is 0.1mm/r；
Ultrasonic machining tool heads are 1200N to the pressure of work surface.
7. a kind of supersonic making method for improving locomotive wheel wearability according to claim 5, it is special
Levy and be, Ultrasonic machining is carried out to the wheel rim rotated along main shaft and the surface of tread using Ultrasonic machining tool heads,
The round number of times of the Ultrasonic machining is 1-3 times.
8. a kind of supersonic making method for improving locomotive wheel wearability according to claim 5, it is special
Levy and be, Ultrasonic machining is carried out to the wheel rim rotated along main shaft and the surface of tread using Ultrasonic machining tool heads,
The amplitude of the Ultrasonic machining is 5-25 μm.
9. a kind of resistance to improve locomotive wheel using the supersonic making method as described in claim 1-8 any one
The application of mill property, it is characterised in that the region for locomotive wheel correspondence in the presence of abrasion carries out Ultrasonic machining, institute
The parameter for stating Ultrasonic machining is：The rotating speed of main shaft is 5-45r/min；The amount of feeding is 0.03-0.2mm/r；Ultrasound
Machining tool head is 300-3000N to the pressure of work surface.
10. the application for improving locomotive wheel wearability as claimed in claim 9, it is characterised in that described
Before the region of abrasion carries out Ultrasonic machining, turning semifinishing is carried out to it, even if its surface roughness is
3.2-10μm；Preferably, the parameter of the Ultrasonic machining is：The rotating speed of main shaft is 19r/min；The amount of feeding
It is 0.1mm/r；Ultrasonic machining tool heads are 1200N to the pressure of work surface.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971350.7A CN106881559A (en) | 2015-12-22 | 2015-12-22 | A kind of supersonic making method for improving locomotive wheel wearability and application |
| PCT/CN2016/109987 WO2017107832A1 (en) | 2015-12-22 | 2016-12-15 | Ultrasonic machining method for improving abradability of wheel of locomotive, and applications |
| EP16877643.3A EP3395495A4 (en) | 2015-12-22 | 2016-12-15 | Ultrasonic machining method for improving abradability of wheel of locomotive, and applications |
| US15/770,830 US20180318972A1 (en) | 2015-12-22 | 2016-12-15 | Ultrasonic machining method for improving abradability of wheel of locomotive, and applications |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971350.7A CN106881559A (en) | 2015-12-22 | 2015-12-22 | A kind of supersonic making method for improving locomotive wheel wearability and application |
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| CN106881559A true CN106881559A (en) | 2017-06-23 |
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ID=59176113
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| CN201510971350.7A Pending CN106881559A (en) | 2015-12-22 | 2015-12-22 | A kind of supersonic making method for improving locomotive wheel wearability and application |
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| CN101417401A (en) * | 2008-11-28 | 2009-04-29 | 太原理工大学 | Complicated surface optical finishing processing device and technique |
| CN102560078A (en) * | 2010-12-24 | 2012-07-11 | 北京有色金属研究总院 | Steel and iron material surface nanometering method |
| CN102658454A (en) * | 2012-04-28 | 2012-09-12 | 山东华云机电科技有限公司 | Supersonic machining method of circular-arc face of engine valve |
| CN103084608A (en) * | 2013-01-28 | 2013-05-08 | 赵显华 | Ultrasonic metal surface machining process for boring machine |
| CN103084634A (en) * | 2013-01-28 | 2013-05-08 | 赵显华 | Ultrasonic metal surface machining process for milling machine |
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2015
- 2015-12-22 CN CN201510971350.7A patent/CN106881559A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1911596A (en) * | 2006-08-15 | 2007-02-14 | 天津大学 | Processing method and equipment of metal material surface nanometer layer |
| CN101417401A (en) * | 2008-11-28 | 2009-04-29 | 太原理工大学 | Complicated surface optical finishing processing device and technique |
| CN102560078A (en) * | 2010-12-24 | 2012-07-11 | 北京有色金属研究总院 | Steel and iron material surface nanometering method |
| CN102658454A (en) * | 2012-04-28 | 2012-09-12 | 山东华云机电科技有限公司 | Supersonic machining method of circular-arc face of engine valve |
| CN103084608A (en) * | 2013-01-28 | 2013-05-08 | 赵显华 | Ultrasonic metal surface machining process for boring machine |
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